Machine for



UNITED STATES PATENT OFFICE.

` R. H. COLE, OF ST. LOUIS, MISSOURI.

MACHINE FOR MAKING- RIVETS.

Specication of Letters Patent N o. 16,967, dated April 7, 1857.

To all 'whom t may concern Be it known that I, RICHARD H. COLE, of thecity of St. Louis, State of Missouri, have invented an Improved Machinefor Making Rivets; and I do hereby declare that the following is a fulland exact description thereof, reference being had to the accompanyingdrawings, making a part of this specicatio-n, Figure l, being a top viewof said machine; Fig. 2, a side elevation thereof; Fig. 3, an end viewwith some of the parts removed; Fig. 4, a vertical section in the line 11 of Fig. l and of 3 3, Fig. 3; Fig. 5, an elevation of the rear side ofthe machine after the main cam wheel I has been detached therefrom; Fig.6, a transverse section in the line 2 2 of Fig. l; Fig. 7, a plan of thebed-plate of the machine; and the remaining figures represent in detailthe principal parts of the machine more clearly than they could be shownin the other figures.

` Similar letters indicate corresponding parts in each drawing.

Y The most essential feature of novelty in my improved rivet-makingmachine, is successively forming die-boxes of a double series ofsec-tions el, d, secured to parallel peripheries of two intermittinglymoving wheels B, B', whose bearings are so arranged and combined withother mechanism that the instant a pair of the said sections are broughtface to face, they will be forced into close contact with each other,and be there held while a rivet is being formed in the die-box thusproduced, and then be delivered to allow of the next movement of saidwheels, which will bring the succeeding pair of said sections oppositeeach other. The shafts E, F, of the said wheels B, B', are connectedwith each other by means of equal-sized toothed-wheels E', F', whoseteeth are so proportioned and matched with each other that each movementof said wheels will bring a pair of the die-box sec-` tions cZ, (Z (onthe wheels B, B',) exactly opposite and facing each other, as shown inFig. 22; and at the moment that a pair of said die-box sections arebrought opposite each other; automatically acting mechanism forces thesaid section on the wheel B, firmly against the section on the wheel B',and securely holds the same in said position while other mechanicalmovements cut 0H and head a rivet within said die-box; and

then the said pressure is instantly relieved to permit the nextsimultaneous movement to be imparted to the said rollers B, B', fordischarging the finished rivet and bringing the succeeding pair ofdiebox sections into connection with each other.

The aforesaid intermittent movements are imparted to the rollers B, B',by means of the ratchet wheel C', on the shaft F, and the actuating pawlz', which is combined with the sliding carriage Q, (see Fig. 13,) and isoperated by means of the spring K, and by a series of laterallyprojecting cams, c, c, from the ring I', which is combined with the armsof the large cam-wheel I, on. the shaft C.

The ways of the bearings o, QJ', of the pawl-oarriage Q, are on eachside of the notch g', of the bed-plate O, Fig. 5; and the said carriageis adjusted to the proper posltlon and guided in its movements by meansof the laterally adjustable bearing blocks U, T. The anti-frictionroller s', of the carriage Q, forks in a box r', which is received intoa socket in said carriage, and in which its position may be regulated bythe set screw u, shown in Fig. 11. The spring K, passes through the slot7c', in the bedp`late, and is combined with an arm m, risingY from theblock T, and with the arm Z, which projects from the side of thepawlcarriage Q, in such a manner that the said spring forces saidcarriage to its extreme outward position the instant that it is relievedfromv the action of either of the cams c, c.

The bearing journals of the outer ends of the shafts E, F, are formedimmediately Within the wheels B, B'. The under por tion of the bearingbox Gr, of the shaft E, is secured to the bed-plate O, by means of thescrews lw', w1, Fig. 6, which pass from beneath, first through thesliding plate o, and then upward throughthe slots y, g, in saidbed-plate into screw apertures in the said port-ion of this journal-box; thereby securing said journal-box in such a manner that itcan slide longitudinally the length of the said slots g, g. The rollerB, is pressed forward at the proper moment against the periphery of theroll B', and there held for the proper length of time, by the series ofcams on the periphery of the cam-wheel A, on the shaft A', actingagainst a hardened projection from the outer end of the journalico boxG. The journal-boxes of the shaft A are secured to the front edge of thebedplate O, and the said shaft is geared to t-he main shaft C, by meansof bevel-wheels, as shown in the drawings.

A reciprocating lever composed of the parts R, g, Fig. 14, is combinedwith and plays`loosely upon the shaft F, (of the wheel B,) immediatelywithin its outer journal box; to the portion g, of the said lever, whichprojects over said journal-box, the laterally projecting arm of thecurved reciprocating gage-plate b, is securely fastened, which plateworks a short distance from the inner surfaces of the wheels B,

4 B, in suchl a manner that it can be thrown opposite the inner end ofthe die-box formed by the matching sections d, CZ, combined with saidwheels, andbe adjusted to different distances therefrom. The short armof the lever R, Fig. 14, which descends below the shaft F, is jointed tothe laterally projecting arm p, .of the sliding carriage P, by means ofthe connecting rod 0. The front end of the shaft F, which projects ashort distance through the wheel B, serves as a fulcrum pivot for thereciprocating cutting plate e, whose inner surface is in close contactwith the front faces of the peripheries of the wheels B, B. The lever swhich descends from the eye of the cutting plate e, is jointed to thesliding carriage P, by means of the connect-ing rod s, Fig. 3.

Within the box M, which is bolted to the front end of the bed-plate, anotched adjustable bearing block N, is placed, immediately in front ofthe cutting plate e, and is made to bear against the said cutting-`plate with the requisite degree of force by means of the set screws t,7L, Fig. 4:, which pass through screw apertures in the front side of thebox M, into concavities in the said bearing-block. The spring L, whichpasses through the slot f, Fig. 15, in the front side of the box M, iscombined with a shoulder descending from the top of said box, and withcarriage P, in such a manner that the said spring will throw saidcarriage into its extreme outer position the instant that the carriageis relie-ved from the action of either of the cams j, j, on the innerface of the-rim of the cam-wheel I. The ways of the bearings t, t', ofthe sliding-carriage P, are on each side of the notch P, in the rearedge of the bed-plate, and they are guided by means of the bearingsurface m, Fig. 5, and the adjustable bearing block g, substantially asshown in the drawings.

Within vertical osets H, H, from the top and bottom surfaces of thebed-plate, or within other suitable bearings, the gate H, which carriesthe header a., is confined within adjustable friction surfaces,substantially 'as represented in Fig. 6. The recessed header a, may becombined with the projecting head 71.', of the gate H, by means of theclamp w, and set-screw Y, as shown in Fig. 6, or by other suitablemeans.

rPhe spring J, which works within the slot j', of the bed-plate, is socombined with said bed-plate and with an offset from the front side oftheA gate H, that it will throw back the gate to its extreme rearwardposit-ion the instant that it is relieved from the action of theradiating cams of the cam-wheel D, on the main-shaft C.

The box af, containing a roller for the actuating cams on the cam-wheelD, to strike against, is inserted int-o a socket in the rear end of thegate H, as shown in Fig. 4.

A portion of the lower peripheries of the wheels B, B, run in the waterboxes S, S, for the purpose of cooling them'.

The operation of my improved rivet-making machine I will now describe.The machine having been put in motion and the ends of a suitable numberof rods having been placed in the furnace, the heated end of a rod islaid into the recess in one of the die-box sections, designated by d,Fig. 3, on the wheels B, B, and is pressed forward until its end bearsagainst the gageplate 5,' and then the action of one of the cams c, asbefore described, imparts such an amount of motion to the said wheels B,B, as will carry down and match the said die-box sections, and justbefore the said sections come opposite each other, one of the cams onthe wheel A, strikes against the journal-box G', and thereby forcesinward the wheel B, and brings the inner die-box section on this wheelinto close contact with the corresponding sectionv on the oppositewheel; and the next instant one of the cams j, Fig. l, carries forwardthe carriage- P, and by so doing, simultaneously throws upward thecurved gage-plate Z9, and the cutting-plate e; the elevation of the gageplate I), gives free playl to the header a, and the elevation of thecutting-plate e, cuts off the portion of the heated rod embraced withinthe die-box; the long actuating surface of the said cams l7', holds thelower portion of the cutting-plate over the mouth of the die-box-seeFig. 1-where it is supported by the block N,'while the header a, isdriven forward, forms the head on the rivet and recedes again; and thenthe retrograde movement of the carriage P, throws downward thegage-plate ZJ, and cuttingplate e, and simultaneously with saidmovement, the wheels B, B, are again moved forward to discharge thefinished rivet and to carry the end of another heated rod into themachine to be operated upon, and so on.

What I claim as my invent-ion and desire to secure by Letters Patent, is

1. Forming a successive series of dieboxes of a double series ofsections d, d,

other and also with the cam-Wheels B, B', substantially in the mannerand pose herein set forth.

3. I also claim the combination of the cam-Wheels B, B', with thegage-plate ZJ, the cutting-plate e, and the header a, substantially inthe manner and for the purpose herein set forth.

R. H. COLE. Vitnesses:

A. R. CORBIN, S. H. SHAKESPEARE.

for the puri

